The value of “constant sharpness” as a diagnostic sign in MR-Mammography

Kaiser CG, Baltzer P, Kaiser AK, Krammer J, Uder M, Kaiser WA, Dietzel M (2016)

Publication Type: Journal article

Publication year: 2016

Journal

European Journal of Radiology Open Elsevier

Book Volume: 3

Pages Range: 236-238

DOI: 10.1016/j.ejro.2016.08.004

Abstract

Purpose To examine “constant lesion sharpness” as a morphological diagnostic sign in the differential diagnosis between benign and malignant lesions. Material and methods This prospective study had institutional review board approval and was HIPAA compliant. In total 1014 consecutive patients were examined (mean age 55 years ± 13 years) and evaluated in our University hospital towards the morphological shape of the lesion borders. The “Constant sharpness Sign” was defined as a lesion remaining continuously sharp for the duration of the dynamic scan. Inclusion criteria were unclear findings (e.g. BIRADS III/IV), Preoperative staging (BRIDAS IV/V), and referred patients from local clinic of gynecology. Exclusion criteria were MRM-examination ≤1 year before, status after surgery and/or biopsy, chemotherapy and/or radiation therapy. Reference Standard was histological verification. Images were diagnosed by two experienced radiologists in consensus, blinded to the standard of reference. Results 1014 patients with 1084 lesions (436 benign, 648 malignant lesions) were included into the study. 41.5% of benign lesions and 6.8% (181/436) of malignant lesions displayed a constant sharpness as an accompanying morphological sign (P < 0.001). This resulted in a sensitivity of 41.5%, specificity of 93.2%, a positive likelihood ratio of 6.1%, a negative likelihood ratio of 0.63 and an odd's ratio of 9,7%. Summary and conclusion The constant sharpness sign seems to be an accurate predictor of benign breast lesions, which may help to increase the accuracy of MRM as a morphological sign.

Authors with CRIS profile

Michael Uder Lehrstuhl für Diagnostische Radiologie Matthias Dietzel Institute of Radiology

Involved external institutions

Universitätsklinikum Mannheim DE Germany (DE) Universität Mannheim DE Germany (DE) Medizinische Universität Wien AT Austria (AT)

How to cite

APA:

Kaiser, C.G., Baltzer, P., Kaiser, A.K., Krammer, J., Uder, M., Kaiser, W.A., & Dietzel, M. (2016). The value of “constant sharpness” as a diagnostic sign in MR-Mammography. European Journal of Radiology Open, 3, 236-238. https://doi.org/10.1016/j.ejro.2016.08.004

MLA:

Kaiser, Clemens G., et al. "The value of “constant sharpness” as a diagnostic sign in MR-Mammography." European Journal of Radiology Open 3 (2016): 236-238.

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